package com.itheima.service.impl;

import com.itheima.domain.User;
import com.itheima.domain.UserExample;
import com.itheima.mapper.UserMapper;
import com.itheima.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private UserMapper userMapper;

    @Override
    public User findByTelephone(String telephone) {
        UserExample userExample = new UserExample();
        userExample.createCriteria().andTelephoneEqualTo(telephone);
        List<User> userList = userMapper.selectByExample(userExample);
        if(userList!=null && userList.size()==1){
            return userList.get(0);
        }
        return null;
    }
}
